Scenario: Power across the globe is out (for a long time), fuel is out, tractors, tillers, backholes, drills are all shutdown and rusty. Water is getting scarce, so you decide to find a underground well by means of a witching stick. You find one, but you know its around 100 to 150 feet deep. What would you do to get to the source? I know digging with shovels etc would do the trick, but whew!